This section is from the book "Commercial Gardening Vol2", by John Weathers (the Editor). Also available from Amazon: Commercial Gardening, A Practical & Scientific Treatise For Market Gardeners.
Apart from the kinds grown under glass by market growers (see p. 179) the trade done in other species of Lilium is practically confined to the nurseryman. Here and there one finds a patch of the Turk's Cap Lily (L. Martagon), L. chalcedonicum, or some other hardy species in a market garden, but it is looked upon as a crop of no great importance. Some of the fine, easily grown, and free-flowering kinds, however, would probably pay for more extended cultivation amongst market growers. After the first cost, very little expense would be incurred, and the flowers would more than pay the rent, labour, etc, year after year. In fact, wherever Daffodils are grown, there also could Liliums be grown with them on the same piece of land. The Daffodils are all over by June, just at a time when the Liliums are coming well into flower. The following Liliums may be recommended for cut flowers grown in the open air: L. auratum (fig. 217) and its varieties, white banded with yellow and blotched purple: L. Burbanki, a free-flowering hybrid between L. parda-linum and L. Washingtonianum, orange yellow, spotted purple; L. elegans (Thunbergianum), a magnificent lily about 2 ft. high, with erect orange-crimson cup-shaped flowers lightly spotted; very free and hardy, and may be left several years in the same spot. There are several fine varieties - all good for cut flower. L. Hansoni, 3-4 ft., with numerous bright orange-yellow flowers, very free. L. Hearyi, 3-8 ft., rich orange-red flowers from July to September; L. Humboldti, 4-8 ft., rich orange-yellow flowers, spotted purple, very free; L. Mavtagon, 3-2 ft., purple red, spotted carmine; L. monadelphum (Loddigesianum), 3-5 ft., clear pale yellow; the variety Szovitsianum (or Colchicum) is still better, having beauti-ful citron-yellow flowers spotted with blackish purple, sometimes thirty on a single stem; L. pardalinum, the Leopard Lily, 3-8 ft. high, bright orange red, spotted deep blue, very free; there are several good forms; L. triginum - the Tiger Lily, 2-4 ft., deep orange red; spotted blackish purple; tes-taceum (or excelsum), 5-6 ft., nankeen yellow or apricot dotted with orange red.
Fig. 217. - Lilium auratum.
These Liliums are all easily grown in the open air in good, deeply dug, well-drained, and well - manured garden soil. They should be grown in beds about 4-5 ft. wide, and the tops of the bulbs should be planted about 6 in. below the surface, the distance apart for market work being about 1 ft. Bulbs of Narcissi and Daffodils could be planted between the Lilies, and in this way the two crops would not interfere with each other in the least, and one would naturally succeed the other. When the Narcissi have quite died down by the end of June, the surface of the ground could be carefully hoed between the Liliums; and in October or November a light dressing of well-rotted manure would be beneficial to both crops.